Home / 87,425.30-120,647.09-51,617.61

Finding the Fourth Proportional to 87,425.30, 120,647.09 and 51,617.61

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Solution

The fourth proportional to 87,425.30, 120,647.09 and 51,617.61 is: 71,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,425.30 : 120,647.09 = 51,617.61 : x
  2. Step 2: Convert to fraction form
    87,425.30/120,647.09 = 51,617.61/x
  3. Step 3: Cross multiply
    87,425.30x = 120,647.09 × 51,617.61
  4. Step 4: Simplify right side
    87,425.30x = 6,227,514,181.17
  5. Step 5: Solve for x
    x = 6,227,514,181.17/87,425.30
  6. Step 6: Final answer
    x = 71,232.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.